﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace TaskGetAwaiter
{
    /// <summary>
    /// MainWindow.xaml 的交互逻辑
    /// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
        }

        private void Test(object sender, RoutedEventArgs e)
        {
            Task task = new Task(DoTask);
            MessageBox.Show("Ok1");
            task.Start();

            // 等待异步任务完成
            task.GetAwaiter().OnCompleted(() => MessageBox.Show("Ok2"));
        }

        private void DoTask()
        {
            Thread.Sleep(5000);
            this.Dispatcher.Invoke(() => MessageBox.Show("Do Task OK"));
        }
    }
}
